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Vector

Videos

1. Concept of Vector

To understand the concepts of physics clearly, it is important to know the difference
between scalars and vectors first. But is it enough to know that scalars have magnitude
alone, while vectors have both magnitude and direction? How do we represent a vector?
What are its properties? What are null vectors and unit vectors? What are the basic
laws of vector algebra, and where do we apply them? The video lecture “Concept
of Vector” answers some of these questions, and more.

2. Resolution of Vector

When a vector is resolved, its component vectors produce together the same effect
as the original vector does alone. We can resolve a vector into any number of component
vectors, or we can resolve it along two arbitrary directions. But most often we
resolve a vector along two mutually perpendicular directions, say along x- and y-axes.
What are the techniques of resolution? What are the component vectors? How to find
the original vector if the components are known? How to add several vectors by using
the method of resolution? The video lecture “Resolution of a Vector”
answers some of these questions, and more.